Trolley-stand.



No. 885,063. PATENTED APR. 21, 1908.

' W. A.' LOUDON.

TROLLEY STAND'. l A-PPLIUATION ILED AUG. 9, 1905.

` ffltgy.

30 one end to said pole near'its heel and at'its narran srn'ras rlrnnfr carica.

WILLIAM A. LOUDON, OF CHICAGO, ILLINOIS, ASSIGNOR TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

'rnoLLaY-srenr).

To all 'whom it may concern.'

4Be it known that I, WILLIAM A. LoUDoN, a citizen of the United States, residing at Chicago, in' the county of Cook and State of aconfined space.

Illinois, have invented certain new and vuseful Implrovements in Trolley Stands, of

which t e following'is a specification.

This invention relates tounderrunning.

trolleys for electric railways, and its object is to enable the trolley pole to be reversed in Ordinarily when the trolley stand is rotated to reverse the position of the trolley, the

*is no room laterally typ; of pole.

` can be reversed within the width of the car, l

' systems.

pole swings around in a large circle, requirlng a good deal of clear space about the car.

But in the case of mininglocomotives,` or

invention aims toprovide'a pole that so that it is 'of especial advantage in tunnel The invention consists in a trolley pole having its heel hinged to a spring plunger housed in a` suitab e standard or column, and fulcrumed on a link which is hinged at other end to the side of'said standard. The

height of the standard is such that the ole ,Y can be turned down alo side of it, an in this position the standar and pole can be rotated to reverse the pole. In the accompanying drawing, Figure 1 is an end elevation/of an electric mining locomotive e uipped with my improvedtrolley pole andf ocated in a tunnel; and Fig. 2 1sl a sectional elevation of ftheI--standard anda part of the pole, shown on alarger scale.

'.On the top of the electric locomotive 1 is secured the'pedest'al 2 which affords an upright cylindrical bearing for the rotatabe tubular standard. A cap 4 is fastened'on plunger is ch suppentsa wasn r 11 serving as onethe top of said standard, and at one side of said cap are ears 5 to which is hinged a link 6; A socket 7 for the trolleyjpole 8is hinged to the upper'end ofthe link, and the heel of the standard 3.j "`The` lower end of the lwithreaiip to receive a nut l0 Speciiication of Letters Patent. Application iiled August 9, 1905.` Serial No. 273,373'.

`which ithad been previously standar Patented Apn'i 241, 190s.

abutment for a helicalspring 12.which surrounds the plunger in the'annular space between said plunger and theistandard. The upper end ofthe s ring abuts against the cap 4. The tension o the spring canbe adjusted by means of the 'nut so as to produce the requisite upward ressnr'e of the trolley wheel 13 against t e overhead conductor,

the upper end of the link 6. being the fulcrum onlwhich the trolley-poleswings. 1

` The trolley pole is preferably made of wqod,

and an insulated conductor'14 ,leads from the trolley-wheel through an eye 15 on the heel of the socket and through a hole in thecap 4 and a longitudinal s ot 16-in the tubular plunger into and/downthrough the samel to a contact "late 17 ixed in a block of insulating materia 18 which forms the bottom of the tubular standard. The slot lpermits theplunger to rise and fall without disturbing the conductor 14 and the conductor is tectedinside the plunger by al sheath 190i insulating 'materi :A contact plate 20 1s fixed inaplate 21 'off' insulation secured to the lower art of the 17; A lead 22 connects the plate 21 wit the motor. This construction permits the tubu' standard, in rubbing contact wit .the late' lar standard to ,be rotated to. anyvextenti.

without breaking the motor-circuit.` A crossbar 23 securedto said standard enables the operator to turn it easily. The standard is of such height,'=and the f trolley ole is of such length 'that thelatter can be rawn down to an almost vertical'position without Adan .er of the trolley wheel. striking the top .of t e lpcomotive, as clearliy shown, in Fig. 1 In this positiothe stan '-v ard and the pole can easily be rotated so as to reverse the trolley 'and permit the locomotive to runin .the opposite direction tofthat in roceeding. Fig. l'shows the 'standard turnedp ninety degrees from either of its normalrunning positions.`v| ,It will be -seen that it occu ies a pos sition substantially Within the wi th ofthe locomotive, so that it is inno danger of striky 10 standard7 a trolley po 2. The combination with-an electric vehicle, of a pedestal mounted thereon, a standard rotatable in said pedestal, a spring plunger in said standard, a trolley pole hingedto -5 said plunger, and a link connecting said standard and ole.

3. The com inat'ion with an electric vehicle,'of a rotatable tubular'standard mounted thereon, a tubular s ring plunger in said le hinged to said plunger, a link connecting said standard and Ipole, onghinged to said ole and standard whereby the pole may be olded down alongside of the standard, an insulated conductor secured to said pole. and passing through the slot in said plunger, and a sheath surrounding said con 25 duotor inside of said plunger.

5. The combination with a standard, of a spring pressed lunger in said standard, guides for said p unger, a trolley pole hinged to said plunger, and afulcrurn support for the 30 trolley pole flexibly connected to said standard whereby the pole may be folded down alongside of the standard y n witness whereof, I have hereunto set my hand this 4th day of August, 1905.

WILLIAM A. LOUDON.

15 through said tubular plunger.

- 4. The combination with an electric vehicle, of a rotatable tubular standard mountedv`v t ereon, a' tubular spring plunger in said standard provided with a longitudinal slot, a l 20 trolley pole hinged to said plunger, a link Witnesses:

L.. G. CRAWFORD, -H. G. MACLEOD. 

